Joseph mason and henry mason



" UNITED STATES "PATENT OFFICE.

J OSEPH MASON AND HENRY MASON, 'OF N ElV TO K, Y. I

SAFETY-BU RN ER.

SPECIFICATION forming part of Letters Patent No. 402,262, dated April 30, 1889 Application filed November 24, 1888- Serial No. 291,765. (No model.)

To all whom it may concern.-

Be it known that we, JOSEPH MASON and HENRY MASON, both of the city, county, and State of New York, have invented anew and Improved Safety-Burner, of which the following is a full, clear, and exact description.

This invention relates to gas-burners, the object of the invention being to provide for the automatic shutting oif of the gas-supply should the gas accidentally go out or be blown out by persons ignorant of the operation of the ordinary gas-fixture, whereby all danger of explosion or the asphyxiation of those in the apartment where the safety-burnerv is will be avoided.

To the end above named the invention consists, essentially,'of an attachment having a gas-passage in which there is located a valve .controlled by a spring and a diaphragm, said diaphragm forming one of the walls of an airchamber arranged in close proximity to the burner-tip, all as will be hereinafter more fully described, and specifically pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification,

. in which similar figures and letters of reference indicate corresponding parts in all the views.

burner. Fig. is a rear view thereof.

Figure 1 is a central sectional elevation of our safety-burner, the view being taken on line :0 0c of Fig. 3. Fig. 2 is aface View of'the Fig. 4 is a cross-sectional view on line 11 y of Fig. 1, and Fig. 5 is a face view of the valve.

In the drawings, 10 represents the body or barrel of a burner, at one end of which there is secured the ordinary tip 11,while the other end of the body is arranged for connection with the nipple of a gas-fixture. A partition, 12, divides the body 10 into two chambers or compartments, A 13, communication between the-said chambers or compartments being at times established by means of a passage formed in an arm, 14:, the passage (as arranged in the drawings) being made up of a lower passage or bore, a, a valve-chamber, 15, a chamber, 16, and an upper passage or bore, b.

The chamber 16 is formed by a disk, 17, and a diaphragm, 18, said diaphragm being secured to thedisk by a cap, 19, that is internally threaded to engage a thread out upon the pcripheral edge of the disk, whereby an airtight chamber, C, is formed between the outer face of the diaphragm and'the inner surface of the cap.

YVithin the chamber 15 there is arranged a valve, 20, that is normally held to its seat by a spring, 21, coiled about the valve-stem, one end of the spring abutting against the valvehead and the other against a plug, 22, arranged as shown. As before stated, the valve 20 is normally seated, and consequently all communication between the bore or passage 0. and the bore or passage 1) is normally closed; but if the air within the chamber 0 be heated it will become rarefied and the diaphragm 18 will be moved to about the position in which it is shown in Fig. 1, thus opening a passage through the disk 17 and establishing communication between the gasfixture and the chamber B of the barrel 10, the burning of the gas at the tipof the burner maintaining sufficient heat within the chamber 0 to hold the diaphragm in the position shown; but if the gas should go out or be blown out the air within the chamber 0 would contract, and as the air so contracted the diaphragm 18 would move to the position indicated by'dotted lines in Fig. 1, thus leaving the spring 21 free to act to force the valve 20 to its seat, thus cutting oif all communication between the gas-supp] y and the burnertip.

'lo light the gas, the plug of the fixture is turned and a matchor other proper heatproducing lighter is held in close proximity to the cap 19. Then as the air within the chamber 0 becomes rarefied the valve 20 will be forced from its seat, thus establishing a passage for the gas from the fixture to the burner-tip.

Although we have described a specific form of safety-burner, we desire'it to be distinctly understood that any burner provided with a gas-passage in which there is arranged a valve good conducting material could be employed in the construction of the cap 19, we prefer to employ copper.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. The combination; with a burner-body divided into upper and lower chambers or compartments, of an arm extending upward from the side of the burner-body and formed with gas-passages which connect the burnerbody chambers, a cap and diaphragm carried by the arm and forming an air-tight chamber, a valve mounted to control the gas-passages and arranged to bear against the diaphragm, and a spring arranged in connection with the valve, substantially as described.

JOSEPH MASON. HENRY MASON.

\Vitnesscs:

II ENRY A. IIOELZLE, FREDERICK ELLDocK. 

